Improvement in stench-traps



J; SEMPLE.

Ste-nch-Traps.- No. 142,739k APatented*Sptember9,'1873.

Yayi.

UM Q UNITED STATES PATENT EEroE.

JAMES SEMPLE, OF CHICAGO, ILLINOIS.

IMPROVEMENT IN STENCH-TRAPS.

Specification forming part of Letters Patent No. 142,739, datrd September 9, 1873; application filed June 25. 1873.

CAsE A.

To all whom it may concern:

Be it known that I, JAMES SEMPLE, of Chicago, in the county of Cook and State of Illinois, have invented a nevir and Improved Method of Casting Water-Traps; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawing forming part of this specification, in Which- Figure l is a side View of a stench-trap core; Fig. 2, a side elevation, partly broken away, of the casting-mold and appurtenances; Fig. 3, a side view of the metallic rra-enforcement; and Fig. 4, a side elevation of the plug which closes the bottom outlet ofthe trap.

The invention relates to stench-traps. It will first be fully described, and then clearly pointed out in the claim.

In the drawing, A is the mold in which a stench-trap is cast, and a the bend thereof. At c is a brass or other metallic re-enforcement, B, Which is tinned on both sides before being placed lin the mold, the re-enforcement being thereby caused to be soldered on both sides to the trap that is formed of the inpoured lead, the inside being also left even and smooth. This becomes necessary in the construction of these traps from the fact that persons are in the habit of thrusting thereinto iron rods or sticks of Wood, to relieve them of any obstacle which may have become temporarily lodged.

In many traps there is required at the bend an outlet-tube, c', which must pass through the re-enforcement B, to enable the trap to be conveniently cleaned. For this purpose I form an internally-threaded neck, b, on the reenforcement B, a corresponding neck, a', on the mold, and employ an end-threaded heavy plug, C, which has on the end a curved concavity, c, that abuts against the core, holding the said core at a little distance from the inner face of the re-enforcement to allow of the intermediate iniow of lead.

The plug C and re-enforcement B being screwed together, are placed in the mold A and the leaden trap cast thereon. After the trap is withdrawn the plug is unscrewed, and its place supplied by a metallic screw-plug D.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

A stench-trap, provided with a metallic reent'orcement at the bend c, as and for the purpose described.'

JAMES SEMPLE.

Witnesses:

J AMES H. GRIDLEY, SoLoN C. KEMoN. 

